radio frequency

British  

noun

1. 1. Abbreviations: rf.   RF.  a frequency or band of frequencies that lie in the range 10 kilohertz to 300 000 megahertz and can be used for radio communications and broadcasting See also frequency band

   2. ( as modifier )

      a radio-frequency amplifier

2. the frequency transmitted by a particular radio station

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radio frequency Scientific  

1. A frequency of electromagnetic radiation in the range at which radio signals are transmitted, ranging from approximately 3 kilohertz to 300 gigahertz. Many astronomical bodies, such as pulsars, quasars, and possibly black holes, emit radio frequency radiation.

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Example Sentences

Within days of the killing of Iranian Supreme Leader Ayatollah Ali Khamenei on Feb. 28, cryptic messages were broadcast globally on a new shortwave radio frequency.

From Los Angeles Times

Every vessel transmits a message per second over a universal radio frequency that announces its identity, destination and position.

From Barron's

The instrument allowed them to scan the northern sky at multiple radio frequencies, offering a detailed look at the structure of the galaxy's magnetic field.

From Science Daily

In early January, a communications blackout at Athens International Airport snarled flights for hours, when multiple radio frequencies serving Athens airspace were hit by continuous "noise" interference.

From Barron's

The British government said it feared that other bodies would join in, potentially blocking radio frequencies from being used and barring commercial flights heading over the island.

From The Wall Street Journal

Related Words

• high frequency